21224101319 has 2 divisors, whose sum is σ = 21224101320. Its totient is φ = 21224101318.

The previous prime is 21224101267. The next prime is 21224101321. The reversal of 21224101319 is 91310142212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21224101319 is a prime.

It is a super-2 number, since 2×21224101319² (a number of 21 digits) contains 22 as substring.

Together with 21224101321, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21124101319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10612050659 + 10612050660.

It is an arithmetic number, because the mean of its divisors is an integer number (10612050660).

Almost surely, 2^21224101319 is an apocalyptic number.

21224101319 is a deficient number, since it is larger than the sum of its proper divisors (1).

21224101319 is an equidigital number, since it uses as much as digits as its factorization.

21224101319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 21224101319 in words is "twenty-one billion, two hundred twenty-four million, one hundred one thousand, three hundred nineteen".